In their interpretation and application, the provisions of this
chapter shall be held to be the minimum standards adopted for the
promotion of the public health, safety, comfort, convenience and general
welfare. Except where specifically provided to the contrary, it is
not intended by this chapter to repeal, abrogate, annul or in any
way to impair or interfere with any rules, regulations or permits
previously adopted or issued or which shall be adopted or issued pursuant
to law relating to the use of buildings, structures, shelter or premises,
nor is it intended by this chapter to interfere with or abrogate or
annul any easements, covenants or other agreements between parties;
provided, however, that where this chapter imposes a greater restriction
upon the use of a building or premises, or requires larger open spaces
than are imposed or required by any other statute, local law, rule,
regulation or permit, or by any easement or agreement, the provisions
of this chapter shall control.